Let coding agents diagnose and fix your React code

React hook to handle chat textarea submit behaviors (Enter vs Mod+Enter) with IME-safe handling.

Community-contributed instructions, prompts, and configurations to help you make the most of GitHub Copilot.

💫 Toolkit to help you get started with Spec-Driven Development

UDEV Gothic は、ユニバーサルデザインフォントのBIZ UDゴシックと、 開発者向けフォントの JetBrains Mono を合成した、プログラミング向けフォントです。

The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents

From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.

🦉 Custom jest matchers to test the state of the DOM

A curated list of awesome frontend development resources.

Useful for translating zod error messages.

Scan for React performance issues and eliminate slow renders in your app

Automatically generates beautiful and easy-to-read ER diagrams from your database.

Testing utilities that encourage good practices for apps built with GraphQL.

A beautiful yet powerful syntax highlighter

A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

React patterns & techniques to use in development for React Developer ⚛ .

ESLint rules to disable mutation and promote fp in JavaScript and TypeScript.

ESLint rules for functional programming

ESLint plugin to force responsive media elements to set the width/height attributes

🌳 Tiny & elegant JavaScript HTTP client based on the Fetch API

🐼 Universal, Type-Safe, CSS-in-JS Framework for Design Systems ⚡️

Structural diff for JSON files

Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input

Google's Engineering Practices documentation

Fullstack GraphQL Framework for TypeScript

✂️ Find unused files, dependencies and exports in your JavaScript and TypeScript projects. Knip it before you ship it!

Glob all files that are not compiled by webpack under webpack's context

⚪ SVG-Powered component to easily create skeleton loadings.